butterfield



(No Model.)

4 Sheets-Sheet 1.

W. BUTTERPIELD.

00111) TYER FOR GRAIN BINDERS.

Patented Nw. 15, 1887.

(No Model.) 4.Sheets-Sheet 2.

W. BUTTERFIELD. 00111) TYER FOR'GRAIN BINDERS.

- No. 373,220. Patented Nov. 15, 1887.

(No Model.) 4 Sheets-Sheet 3. W. BUTTERFIEL'D. 0on1) T133 FOR GRAIN B'INDERS. No. 373,220. Patented Nov" 15, 1887.

@MM wf r (No Model.) 4 Sheets-Shed 4.

W. BUTTERPIELD. GORD'TYEB, FOR GRAIN BINDERS.

No. 373,220. Patented Nov. 15, 1887;

UNITED STATES PATENT. FFICE.

WILLIAM BUTTERFIELD, or AiiBUnN, NEW YORK. ASSIGNOR TO 1). M.

OSBORNE & COMPANY, OF SAME PLACE.

CORD-TYER FOR GRAIN-BINDERS.

SPECIFICATION forming part of Letters Patent No. 373.220, dated'November 15, 1887.

Application filed February 4, 1887. Serial No. 226,555. (No model.)

. and serving to force the knot from the tyingbill, in combining the knife with a plate or arm which carries the dog for rotating the clamping-disk, and in other minor features, hereinafter explained.

For the purposes of illustration I have shown my invention incorporated in a binder of the familiar Appleby type; but it is to be under- Fig. 2 is a top plan view of the stripper.

stood that it may be applied to machines of other forms. a

In the accompanying drawings, Figure 1 is a top plan view of the breastplate, the lower end of the tyer, and the underlying stripper. Fig. 3 is a bottom plan view of the same, together with its retracting-spring. Fig. 4is a side elevation of the clamping, tying, and cutting mechanism and attendant parts, the underlying breast-plate being shown in cross-section. Fig. 5 is an elevation of the foregoing parts in the direction indicated by the arrow in Fig. 4.. Fig. 6 is a side elevation of the arm through which the knife and the cord-clamp are operated, together with its actuating-lever. Fig. Z isau elevation of the entire mechanism,looking in the direction indicated by the dotted arrow in Fig. 5.

Referring to the drawings, A represents the fixed breast-plate overlying the grain-passage, and provided with the usual slot to admit of the binding-needle rising therethrough to present the cord to the fastening devices.

B represents the usual standard rising rigidly from the breast-plate and formed at its upper end to support the main shaft 0, commonly known as the knotter-shaft, which carries at one end the usual wheel, D, provided with teeth and delaysurfaces to actuate the stop-pinion E, secured on the upright spindle ,of the tyer-bill F, the spindle having its bearings, as usual, in the standard. The tying-bill is of the ordinary type, consisting of two laterally-projectingjaws pivoted one to the other, the movable jaw being closed by an action of the spring F and opened by a stationary cam, G, which encounters its heel in the course of its revolution. The jaws revolve, as usual, immediately above the breast-plate and in a plane substantially parallel therewith in such position that the ascending needle will lay the end of the cord across the twojaws.

H represents the peripherally notched clamping-disk,pivoted to the spindle in an upright position inrear of the tyer, so that the cord will be laid across its edge and into one of its notches by the needle. The edge of this disk travels through a spring-supported shoe, I, which confines the cord therein.

The foregoing parts are of familiar construction, and are not claimed as of my invention.

In order to give an intermitting rotation to the clamping-disk, I pivot on its axis an arm orlever, J, and connect the same at one end by a pitman, K, adjustable in length, to alever, L, pivoted on the standard and seated at its opposite end, which isprovided with an antifriction roller, in a cam-groove, M, in the face of the main gear D. The arm or lever J carries a pivoted dog or bill, N, which, actuated by a spring, 0, engages the ratchet-teeth on the side of the disk to give motion thereto.

On the lever J, which, it will be remembered, drives the disk, I secure a knife, P, arranged to vibrate between the disk and the tying-bill for the purpose of severing the applied band from the spool end of the cord. The parts are so formed and arranged that the knife retreats during the time that the disk is turning forward to clamp the cord and that it rises to sever the cord while the disk is at rest and after the tyer has revolved to form the knot. As regards these parts, my invention resides in maintaining the knife and the device .for

IOO

the tyer I employ a movable stripper-plate, R, preferably made in the particular form represented in Figs. 2 and 3, but susceptible of reasonable modification in form. This plate is pivoted at a to the top of the breast-plate and arranged to vibrate beneath and past the lower end of the tyer. It is provided in its forward end with a cord-receiving notch, I), and combined with a spring, 0, by which it is held normally in a forward position, as shown in Fig. 1, one of its arms extending across the cord passage or slot d, as shown in said figure. IVhen in this position, the notch 1) lies immediately below the tyer, so that the cord carried backward through the slot against the tying-bill enters the notch b of the stripper. As the tying operation is completed and the bill turned toward the rear, as indicated by dotted lines, to permit the escape of the knot, the cord, moving rearward, acts to turn the stripper-plate rearward toward the position indicated in dotted lines. As the plate is pivoted eccentrically to the axis of the tyer, it acts during this rearward movement to force the knot outward toward and from the end of the bill, thus insuring its proper delivery.- In this type of machines the bundle is discharged positively by means of a revolving arm, T, carrying the band with it, and thus it is that the cord is turned sufficiently to insure the proper action of the stripper.

The essence of my invention resides in the construction of the stripper to be actuated by the cord, and it is manifest that it may be modified in form and arrangement in many respects which will suggest themselves to the skilled mechanic without departing from the scope of my invention.

Having thus described my invention,what I claim is 1. In a grain-binding machine, and in combination with a tyerbill, an adjacent movable stripper-plate, substantially as described, arranged in the path of and actuated by the applied band as the bundle is discharged.

2. The tyer-bill, in combination with a pivoted stripper-plate having the notched end located in the path of the band and arranged to swing lengthwise of the tyer-jaws, and the spring to return said stripper to its normal position, said parts organized, substantially as described and shown, so that the stripper is moved and caused to perform its function by the action of the applied band thereon.

3. In a grain-binder, the slotted breast-plate through which the cord is passed, in combination with the rotary tying-bill above said plate, the intermediate vibratory stripperplate havingits arms arranged to span theslot or cord-passage and its pivot located as described, so that the plate will swing forward under the strain of the binding-cord toward the end of the tyer-bill, and the spring for returning said plate to its normal position when released fr om the action of the cord.

4. In a grain-binder, the combination of a rotary tyer-bill, the vibratory stripper-plate located between the tyer and the place occupied by the gavel and adapted and arranged, as described, to be moved by the action of the binding-cord thereon, and the bundle-ejector, whereby the delivery of the bundle is caused to strain the applied band across thestripper, and by thus moving the latter to force the knot from the tyer.

5. In combination with the tyerbill, the rotary cord-clamping disk, the lever J, provided with the pivoted pawl to rotate the disk, and with the fixed knife, the pitman K, connected to the lever, the lever L, to actuate the pitman, and the cam-wheel to actuate said lever.

In testimony whereoflhereunto set my hand, this 14th day of January, 1887, in the presence of two attesting witnesses.

WILLIAM BUTTERFIELD.

Witnesses:

WM. A. KIRBY, DAVID HERBERT. 

